It's crisp in September and autumn, and the climate is getting colder and colder, but why are you getting tired?

Feeling tired in autumn is related to the influence of summer climate and environment on people.

In midsummer, the weather is hot, and the continuous high temperature causes a series of physiological changes in the body. For example, excessive sweating leads to imbalance of water and salt metabolism in the body, decreased secretion of gastric juice, weakened gastrointestinal function, loss of appetite, massive loss of body fluids and temporary heavy drinking, thus increasing the burden on the heart.

At the same time, high temperature also increases the excitability of the nervous system, accelerates metabolism, and makes the energy consumption in the body increase relatively. In addition, it is difficult to get enough sleep in summer, and excessive energy consumption can not be properly compensated, which makes the body owe a debt of "summer consumption".

After autumn, heat is gradually replaced by cold. With the cold weather, the sunshine time is getting shorter day by day, and the human body system has also changed accordingly. For example, sweating is reduced, the generation and emission of body heat are balanced with water and salt metabolism, digestive function is restored to normal, and appetite is enhanced; The burden of cardiovascular system is reduced, and energy metabolism is relatively stable. At this time, the human body needs a physiological rest stage. At the same time, the autumn night is cool and pleasant, easy to fall asleep, and the sleep effect is good, so that after waking up in the morning, I still feel tired and want to sleep again. This is the reason for "autumn lack".

In addition, the lack of autumn may be related to uncontrolled diet, and the appetite in autumn will be better than usual, and it is easy to overeat. After eating a lot, in order to complete the task of digestion and absorption, the gastrointestinal tract has to increase the blood supply, so that a large amount of blood flows to the digestive tract, and the blood supply of peripheral tissues and the brain will also decrease accordingly, especially the brain, which cannot store energy. Therefore, once there is ischemia and hypoxia, energy metabolism will be hindered, which will directly affect the normal play of brain function and make people feel sleepy.